<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-input-search
                    v-model:value="param.name"
                    placeholder="名称"
                    enter-button
                    @search="handleQuery({page: 1, size: pagination.pageSize})"
                />
              </a-form-item>
              <a-form-item>
                <a-button type="primary" @click="add()">
                  新增
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-table
              v-if="level1.length > 0"
              :columns="columns"
              :data-source="level1"
              :row-key="record => record.id"
              :pagination="pagination"
              :loading="loading"
              @change="handleTableChange"
              class="components-table-demo-nested"
              :defaultExpandAllRows="true"
          >
            <template #bodyCell="{ column, record }">
              <template v-if="column.key === 'action'">
                <a-space size="small">
                  <a-button type="primary" @click="edit(record)" size="small">
                    编辑
                  </a-button>
                  <a-popconfirm
                      title="删除后不可恢复，确认删除?"
                      ok-text="是"
                      cancel-text="否"
                      @confirm="handleDelete(record.id)"
                  >
                    <a-button type="danger" size="small">
                      删除
                    </a-button>
                  </a-popconfirm>
                </a-space>
              </template>

            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form :model="doc" layout="vertical">
            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称"/>
            </a-form-item>
            <a-form-item>
              <a-tree-select
                  v-model:value="doc.parent"
                  show-search
                  style="width: 100%"
                  :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  allow-clear
                  tree-default-expand-all
                  :field-names="{label: 'name', value: 'id', children: 'children'}"
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序"/>
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined /> 内容预览
              </a-button>
            </a-form-item>
            <a-form-item>
              <!--       以后再研究       -->
            <!--<wang-edtor :content1="doc.content"></wang-edtor>-->
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>
      <a-drawer class="wangeditor" width="1000" placement="right" :closable="true" :visible="drawerVisible" @close="onDrawerClose">
        <div :innerHTML="previewHtml"></div>
      </a-drawer>
    </a-layout-content>
  </a-layout>

</template>

<script lang="ts">
import {createVNode, defineComponent, onMounted, ref} from 'vue';
import axios from 'axios';
import {message, Modal} from 'ant-design-vue';
import {Tool} from '@/util/tool';
import {useRoute} from 'vue-router';
import {ExclamationCircleOutlined} from '@ant-design/icons-vue';
import E from 'wangeditor';

export default defineComponent({
  name: 'AdminDoc',
  setup() {
    const route = useRoute();
    {console.log("路由：", route);
      console.log("route.path：", route.path);
      console.log("route.query：", route.query);
      console.log("route.param：", route.params);
      console.log("route.fullPath：", route.fullPath);
      console.log("route.name：", route.name);
      console.log("route.meta：", route.meta);}
    const test = ref('dsadsdddddddd');
    const param = ref();
    param.value = {};
    const docs = ref();
    // 因为树选择组件的属性状态，会随当前编辑的节点而变化，所以单独声明一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];
    /**
     * 一级文档树，children属性就是二级文档
     * [{
     *   id: "",
     *   name: "",
     *   children: [{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
    const level1 = ref([{}]);
    const pagination = ref({
      onChange: (page: number) => {
        console.log(page);
      },
      current: 1,
      pageSize: 200,
      total: 0,
      // showSizeChanger: true
    });
    const loading = ref(false);

    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
        key: 'name',
        align: 'center',
        width: 300
      },{
        title: 'Action',
        dataIndex: 'action',
        key: 'action',
        align: 'center',
        width: 500
      }
    ];
    const editor = new E('#content');
    editor.config.zIndex = 0;
    /**
     * 数据查询
     **/
    const handleQuery = (params: any) => {
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      level1.value = [];
      loading.value = true;
      // setTimeout(() => {}, 10000)
      console.log("ebookid======="+route.query.ebookId);
      axios.get("/doc/list", {
        params: {
          page: params.page,
          size: params.size,
          name: param.value.name,
          ebookId: route.query.ebookId
        }
      }).then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          // message.success(data.message);
          docs.value = data.content.list;
          level1.value = [];
          level1.value = Tool.array2Tree(data.content.list, 0) || [];
          // 重置分页按钮
          pagination.value.current = params.page;
          pagination.value.pageSize = params.size;
          pagination.value.total = data.content.total;
          add();
        } else {
          message.error(data.message);
        }
      });
    };

    /**
     * 表格点击页码时触发
     */
    const handleTableChange = (pagination: any) => {
      console.log("看看自带的分页参数都有啥：" + pagination);
      handleQuery({
        page: pagination.current,
        size: pagination.pageSize
      });
    };

    // -------- 表单 ---------
    /**
     * 数组，[100, 101]对应：前端开发 / Vue
     */
    const doc = ref();
    doc.value = {};
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();
      console.log("handleModalOk doc information == " + JSON.stringify(doc.value));
      axios.post("/doc/save", doc.value).then((response) => {
        modalLoading.value = false;
        const data = response.data; // data = commonResp
        if (data.success) {
          modalVisible.value = false;
          message.success(data.message);
          // 重新加载列表
          handleQuery({
            page: pagination.value.current,
            size: pagination.value.pageSize,
          });
        } else {
          message.error(data.message);
        }
      });
    }
    /**
     * 内容查询
     */
    const handleQueryContent = () => {
      axios.get("/doc/find-content/" + doc.value.id).then( (response) => {
        const data = response.data;
        if (data.success){
          editor.txt.html(data.content);
          previewHtml.value = editor.txt.html();
        }else {
          message.error(data.message);
        }
      });
    }

    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };

    /**
     * 编辑
     */
    const edit = (record: any) => {
      // 清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      //解决交互式参数实时变化的问题，编辑表表单未提交表格参数实时发生变化
      doc.value = Tool.copy(record);

      handleQueryContent();
      // 不能选择当前节点及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});
    };

    /**
     * 新增
     */
    const add = () => {
      // 清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };
      treeSelectData.value = Tool.copy(level1.value) || [];
      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});
    };

    /**
     * 删除
     */
    let deleteIds: Array<string> = [];
    let deleteNames: Array<string> = [];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        let node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标节点加入待删除的ids数组中
          deleteIds.push(id);
          deleteNames.push(node.name);
          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };

    /**
     * 删除Modal框二次确认
     */
    const handleDelete = (id: string) => {
      // console.log(level1, level1.value, id)
      // 清空数组，否则多次删除时，数组会一直增加
      deleteIds.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        okText: '确认',
        cancelText: '取消',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除：【' + deleteNames.join("，") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.delete("/doc/delete/" + deleteIds.join(",")).then((response) => {
            const data = response.data; // data = commonResp
            if (data.success) {
              // 重新加载列表
              handleQuery({
                page: pagination.value.current,
                size: pagination.value.pageSize,
              });
            } else {
              message.error(data.message);
            }
          });
        },
      });
    };

// ----------------富文本预览--------------
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      previewHtml.value = editor.txt.html();
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };
    onMounted(() => {
      console.log("admin-doc--------------onMounted");
      handleQuery({
        page: 1,
        size: pagination.value.pageSize
      });
      editor.create();
    });

    return {
      param,
      docs,
      pagination,
      columns,
      loading,
      handleTableChange,
      handleQuery,

      edit,
      add,
      test,
      modalVisible,
      modalLoading,
      handleSave,
      handleDelete,
      doc,
      level1,
      treeSelectData,
      handlePreviewContent,
      onDrawerClose,
      previewHtml,
      drawerVisible
    }
  }
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
/* wangeditor默认样式, 参照: http://www.wangeditor.com/doc/pages/02-%E5%86%85%E5%AE%B9%E5%A4%84%E7%90%86/03-%E8%8E%B7%E5%8F%96html.html */
/* table 样式 */
  .wang table {
    border-top: 1px solid #ccc;
    border-left: 1px solid #ccc;
  }
  .wang table td,
  .wang table th {
    border-bottom: 1px solid #ccc;
    border-right: 1px solid #ccc;
    padding: 3px 5px;
  }
  .wang table th {
    border-bottom: 2px solid #ccc;
    text-align: center;
  }

  /* blockquote 样式 */
  .wang blockquote {
    display: block;
    border-left: 8px solid #d0e5f2;
    padding: 5px 10px;
    margin: 10px 0;
    line-height: 1.4;
    font-size: 100%;
    background-color: #f1f1f1;
  }

  /* code 样式 */
  .wang code {
    display: inline-block;
    *display: inline;
    *zoom: 1;
    background-color: #f1f1f1;
    border-radius: 3px;
    padding: 3px 5px;
    margin: 0 3px;
  }
  .wang pre code {
    display: block;
  }

  /* ul ol 样式 */
  .wang ul, ol {
    margin: 10px 0 10px 20px;
  }

  /* 和antdv p冲突，覆盖掉 */
  .wang blockquote p {
    margin: 20px 10px !important;
    font-size: 16px !important;
    font-weight:600;
  }

  /* 点赞 */
  .vote-div {
    padding: 15px;
    text-align: center;
  }

  /* 图片自适应 */
  .wang img {
    max-width: 100%;
    height: auto;
  }

  /* 视频自适应 */
  .wang iframe {
    width: 100%;
    height: 400px;
  }
</style>
